The rate at which units of one product can be exchanged for units of another product is called the terms of trade

Keynesian economics:

a. affirms the classical economists' basic premise concerning competitive markets. b. believes that monopolies and unions tend to be permanent fixtures in our economy and the prices they create tend to be flexible, at least downwardly. c. emphasizes the possibility that an economy can never be in equilibrium at less than full employment. d. prefers to emphasize aggregate supply over aggregate demand. e. believes that unemployment results when aggregate demand is insufficient to reach a full-employment level of real GDP.

Corn is a key ingredient in food as well as in biofuel production. If the production of corn remains constant, an increase in the demand for corn products as food will decrease the _____ corn for biofuels

a. supply of b. demand for c. supply and demand for d. quantity supplied of